Installation Manual

4 Product Description
4.1 Sunny Boy
The SunnyBoy is a transformerless PV inverter with three MPP trackers, which converts the direct
current of the PV array into grid-compliant alternating current and feeds it into the utility grid.
Figure 2 : Design of the SunnyBoy
Position Designation
A Power Unit
B Enclosure lid of the Power Unit
C Enclosure lid for the Connection Unit
D Connection Unit
E DC load-break switch
The inverter is equipped with a DC load-break switch. If the DC load-break switch is
set to the position I, it establishes a conductive connection between the PV array
and the Power Unit. Switching the DC load-break switch to the O position will inter-
rupt the DC electric circuit.
4 Product Description
SMA Solar Technology America LLC
Installation manual 13SB5.0-6.0-1SP-US-40-IA-xx-10
ENGLISH